Table 3 The GRADE evidence quality
Quality assessment | No. of patients | Effect | Quality | Importance | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
No. of studies | Design | Limitations | Inconsistency | Indirectness | Imprecision | Cementless groups | Cemented groups | |||
Functional recovery | ||||||||||
6 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 229 | 255 | WMD − 0.239; 95% CI − 2.154 to − 1.676 | High | Critical |
Range of motion | ||||||||||
4 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 201 | 199 | WMD − 5.284; 95% CI − 9.430 to − 1.139 | High | Critical |
Pain score | ||||||||||
4 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 140 | 141 | WMD − 3.029; 95% CI − 5.119 to − 0.939 | High | Critical |
Radiological outcomes | ||||||||||
6 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 229 | 255 | RD 0.058; 95% CI 0.004 to 0.111 | High | Critical |
Aseptic loosening | ||||||||||
5 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 194 | 221 | RD − 0.001; 95% CI − 0.030 to 0.028 | High | Critical |
Postoperative complications | ||||||||||
6 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 229 | 255 | RD 0.007; 95% CI − 0.019 to 0.033 | High | Critical |